Knew you were looking for a spoiler. Saw this on ebay. This is the same one that cerasoli got.
http://cgi.ebay.com/ebaymotors/GENUINE-HONDA-Civic-Rear-Wing-Spoiler-fits-96-00-TEAL_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262QQcategoryZ33638QQihZ016QQitemZ260311927075QQtcZphoto
http://cgi.ebay.com/ebaymotors/GENUINE-HONDA-Civic-Rear-Wing-Spoiler-fits-96-00-TEAL_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262QQcategoryZ33638QQihZ016QQitemZ260311927075QQtcZphoto